Opening Samsung old smartphone - What's under the phone??

Opening Samsung old smartphone - What's under the phone??

This is my oldest smartphone of life! It is about 8-9 years old!! Now it's not working yet- so I open the smartphone.

"OLD IS GOLD"

Specifications:(Detailed)

Also known as Samsung Galaxy Trend Plus S7580 with single-SIM card slot

NETWORK	Technology	GSM / HSPA
	2G bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
		GSM 850 / 900 / 1800 / 1900 - S7580
	3G bands	HSDPA 900 / 2100 - S7580, S7582
	Speed	HSPA 21.1/5.76 Mbps

LAUNCH	Announced	2013, November. Released 2013, December
	Status	Discontinued

BODY	Dimensions	121.5 x 63.1 x 10.6 mm (4.78 x 2.48 x 0.42 in)
	Weight	118 g (4.16 oz)
	SIM	Dual SIM (Mini-SIM, dual stand-by)

DISPLAY	Type	TFT capacitive touchscreen, 16M colors
	Size	4.0 inches, 45.5 cm2 (~59.4% screen-to-body ratio)
	Resolution	480 x 800 pixels, 5:3 ratio (~233 ppi density)

PLATFORM	OS	Android 4.2.2 (Jelly Bean)
	Chipset	BCM 28145/28155
	CPU	Dual-core 1.2 GHz Cortex-A9
	GPU	Broadcom VideoCore IV

MEMORY	Card slot	microSDXC (dedicated slot)
	Internal	4GB 768MB RAM

MAIN CAMERA	Single	5 MP, AF
	Features	LED flash
	Video	720p@30fps

SELFIE CAMERA	Single	VGA
	Video

SOUND	Loudspeaker	Yes
	3.5mm jack	Yes

COMMS	WLAN	Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA, hotspot
	Bluetooth	4.0, A2DP
	GPS	Yes, with A-GPS, GLONASS
	Radio	Stereo FM radio, RDS
	USB	microUSB 2.0

FEATURES	Sensors	Accelerometer, proximity, compass

BATTEAY		Removable Li-Ion 1500 mAh battery
	Stand-by	Up to 280 h (3G)
	Talk time	Up to 8 h (3G)

MISC	Colors	White, Black
	Models	GT-S7582, GT-S7580, GT-S7583T
	SAR	0.74 W/kg (head)     1.02 W/kg (body)
	SAR EU	0.59 W/kg (head)     0.42 W/kg (body)
	Price	About 130 EUR                                                                          Credit to GSMARENA